1 /* 2 * Copyright (C) 2007-2013 Lawrence Livermore National Security, LLC. 3 * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). 4 * Written by Brian Behlendorf <behlendorf1@llnl.gov>. 5 * UCRL-CODE-235197 6 * 7 * This file is part of the SPL, Solaris Porting Layer. 8 * 9 * The SPL is free software; you can redistribute it and/or modify it 10 * under the terms of the GNU General Public License as published by the 11 * Free Software Foundation; either version 2 of the License, or (at your 12 * option) any later version. 13 * 14 * The SPL is distributed in the hope that it will be useful, but WITHOUT 15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 17 * for more details. 18 * 19 * You should have received a copy of the GNU General Public License along 20 * with the SPL. If not, see <http://www.gnu.org/licenses/>. 21 */ 22 23 #ifndef _SPL_CALLO_H 24 #define _SPL_CALLO_H 25 26 /* 27 * Callout flags: 28 * 29 * CALLOUT_FLAG_ROUNDUP 30 * Roundup the expiration time to the next resolution boundary. 31 * If this flag is not specified, the expiration time is rounded down. 32 * CALLOUT_FLAG_ABSOLUTE 33 * Normally, the expiration passed to the timeout API functions is an 34 * expiration interval. If this flag is specified, then it is 35 * interpreted as the expiration time itself. 36 * CALLOUT_FLAG_HRESTIME 37 * Normally, callouts are not affected by changes to system time 38 * (hrestime). This flag is used to create a callout that is affected 39 * by system time. If system time changes, these timers must be 40 * handled in a special way (see callout.c). These are used by condition 41 * variables and LWP timers that need this behavior. 42 * CALLOUT_FLAG_32BIT 43 * Legacy interfaces timeout() and realtime_timeout() pass this flag 44 * to timeout_generic() to indicate that a 32-bit ID should be allocated. 45 */ 46 #define CALLOUT_FLAG_ROUNDUP 0x1 47 #define CALLOUT_FLAG_ABSOLUTE 0x2 48 #define CALLOUT_FLAG_HRESTIME 0x4 49 #define CALLOUT_FLAG_32BIT 0x8 50 51 #endif /* _SPL_CALLB_H */ 52